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Leners PafenfNo. 82,433, dated september 22, 1868.

IMPROVEMENT IN ROLLING-MILLS.

@lgs .Stlnhnle tenant tu in tlgtst hints nteut tnt milking part nf tigt sinne TO ALL WI-IOM IT, MAY CON'CERN Be it known that we, FosTnn-NEvnncoLD and DAVID Bnosn, of Pittsburg, in the county of Allegheny, and State of Pennsylvania, have invente'd'certain new and useful Improvements in Machines for Raising Iron, 35e.; and we do hereby declare the following is a full, clear, and exact description thereof, reference being had'to the accompanying drawings, and to the letters of reference marked thereon, which form a part of thisl specication, and in which-' Figure 1 is a front elevation, and

Figure 2 a side view of our machine.

Figure 3, a side view of the movable table lwhen raised up.

Figure 4, a cross-section of the shaft connecting the rollers with the driving-gear.

The nature of our invention consists in the construction of-a machine for raising iron and steel plates up and putting them over the rollers, which will be-hereinaft'er more fully described.. Y

In order to enable others skilled in the art to which our invention appertains to make and use the same, we will now proceed to describe its construction and operation.

v A represents the bottom or bed of the machine, on-'which bedel-e placed standards, forming two upright frames, B B and C C, of suitable height and suitable distance from each other.

In the frame B B are two shafts, D D, which are each provided with a cogged wheel 'or roller, E, working in each other. To one or both of the shafts D D, that is, to the outer end thereof, the power with which the machine is to be operated, will be attached in any manner most convenient, whether the same is hand or horse` power, or steam or any other motive-power desired.

In the frame C C are two rollers, F F, between which the plates are pressed. The lower one of these rollers has its shaft-bearings in the sides of the frame, and the upper roller rests on 'the lower, the journals of.

the foriner being held in proper position by adjustable sliding blocks G G, one on each side, as shown in iig. 2. The inner ends of the shafts D D are connected with the shafts or journals to the rollers F F, by vmeans of additional shafts, H H, and movable collars I I. The shafts H H, as wellas the ends of the shafts D D, and

the journals to the rollers,iare all grooved, and the insides of the collars I I are provided with lugs or flanges tting in said grooves, so that when, for instance, the lower of the shafts D is set in motion, the motion is communicnted to the lower roller, and by means ofthe cogged rollers E E, also to the upper, both the rollers F F working so as to carry the plate between them and out on the other side.

Ordinarily, two men provided with long hooks throw the plates over on the rolleiside, but this-machineis intended to save-the labor of these men.

For this purpose we place a shaft, J,'provided with a cogged wheel, K, in suitable bearings on the bed A, in such a manner that the wheel K will work or gear into the cogs on the lower roller E; and at the inner end of said shaft J is a crank, L, which, by means of a pitman, M, connects with another crank, N, on the shaft O, the latter being placed in suitable bearings in the bed in front of and parallel wit-h the rollers F F. The crank N is, however, not secured to the shaft O, but fits around it and moves independent ofthe shaft. So as to make theerank turn said shaft, when desired, it is provided withy a tooth on its inside, which fits into a notch on the movable collar P, said collar being on its inner side provided with u. lug, which works in a groove on the shaft C. i

It will thus be seen that when this movable collar, is thrown into gear with the crank N, the shaft O is turned partly around, but when the crank moves back, theshaft does not follow, as the inclined side of the tooth of the crank throws the movable collar away from it. 'lo throw the collar back in gear again, a lever, It, is

placed, which, by means of a rod, connects with a crab-lever, S, the latter surrounding the collar, and working in a groove on the saine.

lo the shaft O are secured two arms, T T, which extend towards the frame C C, and at their rear ends are pivoted to the legs U U of the table V. This table is horizontal, and is provided with journals a a on the ends of a cross-bar, W, as seen in fig. 1. These journals slide up and down in slotted side-pieees X X, which are secured to the sides of the frame C C.

The table V mentioned consists merely of e. frame, in the rear end of which, that is, the end nearest to thc rollers F F, a leaf, Y, is hinged. This leaf, when in proper position, lies between the side-pieces of the table, resting on a cross-bar at the front end.

Near the front end of the leaf Y, and from the centre thereof, an arm, Z, descends, which arm is pivoted to snid leaf, and slotted at its lower end, asseen in lig. 3. In the lewe-1' side of the t-able Vis pivoted an arm, I), the lower end of which forms a fork. A brent or curved lever, cl, is now pivoted at its rear end i-n a suitable arrangement in the frame C C, which extends forward, passing through the forked end of the arm b, and its own front end being forked, the arm Z is passed through the same. A pin put through this forked end, and the slot on the arm Z, allows it to slide up and down in said slot.

It will readily be seen that when the shaft O is turned as far as the crank N will allow, the table V rises up, and as soon as it hasgone high enough to letthe pin in the forked end of the bent lever d strike the upper end of the slot in the arm Z, it raises the forward end of the leafY up a suitable height to throw the plates over.

When the crank Ninow moves back, the shaft O does not follow, as already mentioned, but the weight of the table itself would force it down. 'lo prevent it fromcoming down until. desired, the shaft O is provided with a small wheel, e, on one side of which is a tooth or notch, and when the table is raised up, by turning the leverfon the side ofthe bed A, a bolt, g, catches in the said notch on the wheel e, preventing the shaftO from turning. I

W'hen it is desired to have the table descend, the bolt is withdrawn, by moving the lever f back, and the weight of the table brings it down, ready to be again raised, by throwing the colla-r l? iu gear v,with the crank N, as already mentioned.

A stationary table, It, is placed on the other side ofthe rollers F F. On the shaft .lare piaceri twopinions, z'z', which workin a pinion, k, on the lower end of the upright shaft m. This shaft rests on a supportm., which extends from the bed A, in rea-r of and above the shaft J.

The pinions 'iz'are not secured to said shaft, but placedloose on the same, and whbn it is desired to use the shaft m for the purpose which will be hereinafter set forth, a movable collar, o, placed between said pinions, is thrown in gear with oit-her the one or the other, as may be required. For this purpose the inner sides of the hubs on said pinions are providedwith teeth, which tit into notches on the sides of the collar, and a crab-lever, p, moves said collar either way, the inside of the collar being provided with a lug, tting in a groove on the shaft J. I l

It will be seen that by throwing this collar in gear with the right or left pinion, the shaft m is turned either to the right or left, as may be desired.

To prevent the collar o from being by accident thrown in gear with either of the said pinions, we have provided a stay-lever, 1', to which twopins, .s s, are secured, which extend up one on each side of the lever p, when the latter ils placed so that the collar is out of gear. This effectually prevents said collar from being moved to either side, until thc stay-lever r is so turned that either one of the pins s s allows the lever p to be moved to one side.

The upper end of the upright shaft m runs through a hollow head, t, in the side of which the horizontal shaft A has its bearing. This shaft runs a suitable distance above the frame C C, and is turned by means of a piniorwB, on the upper end of the shaft m, and a similar pinion, C', secured to the shaft A itself, which rests in hollow-headed bolts or pins, D' D. These pins are inserted into the hubs of two cog-wheels, E E', to the lower side of which screws are secured, which run through the topof the frame C, regulating the blocks G, thereby preventing the upper roller F from moving upwards farther than al given distance.

Pinions F F', on the shaft A', gear into the cog-wheels E E', to turn the same.

A screw-regulator, G', is attached to the under side of one of the cog-wheels E', as seen in fig. 2, which regulates theclrauglit on lthe iron.

Having thus fully described our invention, what we claim as new., and desire to secure by Letters Patent, is-

1, The shaft J, crank L, and pitman M, in combination with the crank N, movable collar- P, and shaft O, allconstructed and arranged as described, substantially as and for the purpose herein set forth.

2. The combination of the table V, arm b, side-pieces X X, arms T T, shaft O, legs U U, hinged leat` Y, slotted arm Z, and the lever ci, all constructed and arranged as described, and operating substantially as herein set forth. i v

3. lhe stay-lever 1', swivelled pins s s, and perforated lever-rest, in combination with crab-lever p, all constructed and arranged in the manner and for the purpose substantially as hereinv set forth.

4. The upright shaft m and pinion B', in combination with pinion C', shaft A', pinions F Ff, cog-wheels E E', and regulator Gr", all constructed, arranged, and operating substantially as herein set forth.

In testimonyl that we claim th'e foregoing as our own, we ailix our signatures in presence of .two witnesses.

FOSTER NEVERGOLD, DAVID BROSE.

Witnesses:

J. DONALDSON, J. V. DONALDSON. 

